[libgda] gda-connection: avoids check internal connection data for virtual ones

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 7abf8273674b42d9efc054f308c7e7a31120d03c
Author: Daniel Espinosa <esodan gmail com>
Date:   Wed Oct 3 17:49:46 2018 -0500

    gda-connection: avoids check internal connection data for virtual ones

 libgda/gda-connection.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/libgda/gda-connection.c b/libgda/gda-connection.c
index 0a271c9bd..0600c194c 100644
--- a/libgda/gda-connection.c
+++ b/libgda/gda-connection.c
@@ -1426,8 +1426,8 @@ gda_connection_open (GdaConnection *cnc, GError **error)
        gboolean opened;
        opened = _gda_server_provider_open_connection_sync (priv->provider_obj, cnc, params, auth, error);
 
-       if (opened && !priv->provider_data) {
-               g_warning ("Internal error: connection reported as opened, yet no provider data set");
+       if (opened && !priv->provider_data && !GDA_IS_VIRTUAL_PROVIDER (priv->provider_obj)) {
+               g_set_error (error, GDA_CONNECTION_ERROR, GDA_CONNECTION_PROVIDER_ERROR, "Internal error: 
connection has been reported as opened, yet no provider's data has been setted");
                opened = FALSE;
        }
 
@@ -1513,8 +1513,8 @@ gda_connection_close (GdaConnection *cnc, GError **error)
 
        if (! priv->provider_data) {
                /* connection already closed */
-               g_object_unref (cnc);
                gda_connection_unlock ((GdaLockable*) cnc);
+               g_object_unref (cnc);
                return TRUE;
        }
 
@@ -5938,7 +5938,7 @@ gda_connection_add_prepared_statement (GdaConnection *cnc, GdaStatement *gda_stm
 
        if (!priv->prepared_stmts)
                priv->prepared_stmts = g_hash_table_new_full (g_direct_hash, g_direct_equal,
-                                                                  NULL, _gda_prepared_estatement_free);
+                                                                  NULL, (GDestroyNotify) 
_gda_prepared_estatement_free);
        g_hash_table_remove (priv->prepared_stmts, gda_stmt);
        PreparedStatementRef *ref = _gda_prepared_estatement_new (gda_stmt, prepared_stmt);
        g_hash_table_insert (priv->prepared_stmts, gda_stmt, ref);